Raymarine a65 Installation And Operation Instructions Manual page 184

• Medium
• High
When connected to a Raymarine sonar module without CHIRP
capabilities an automatic setting is available:
• Auto
Selecting the frequency for TVG adjustments
When connected to a Raymarine CHIRP sonar module, the TVG
for frequency 1 and frequency 2 can be changed independently or
both at the same time. If connected to a non-CHIRP sonar module
adjustments will be made to both frequencies simultaneously.
From the fishfinder application:
1. Select Menu.
2. Select Sensitivity Settings.
3. Select TVG.
4. Select Adjust.
5. Select Frequency 1, Frequency 2 or Both.
Selecting a preset TVG setting
TVG preset options are only available when connected to a
Raymarine CHIRP sonar module.
With TVG set to Auto, from the fishfinder application:
1. Select Menu.
2. Select Sensitivity Settings.
3. Select TVG.
4. Select TVG Mode.
5. Select the required setting: Low, Medium or High.
Selecting the TVG Auto setting
The Auto setting for TVG is only available on Raymarine non-CHIRP
sonar modules.
From the fishfinder application:
1. Select Menu.
2. Select Sensitivity Settings.
3. Select TVG.
The TVG slider bar control is displayed.
4. Select Auto so that a tick is placed in the auto box.
Manually adjusting the fishfinder TVG
From the fishfinder application:
1. Select Menu.
2. Select Sensitivity Settings.
3. Select TVG.
The TVG slider bar control is displayed.
4. Select Auto so that the tick is removed from the Auto box.
5. Adjust the slider bar control to the required setting.
6. Select Back to confirm setting and close slider bar control.
Note: TVG has no effect in fishfinder simulator mode.
TVG on-screen controls
Touchscreen multifunction displays provide on-screen access to
the TVG controls.
Selecting the on-screen TVG control will display the TVG settings:
CHIRP controls
When connected to a CHIRP sonar module the automatic TVG
has 3 modes:
184
When in manual mode the slider bar control is shown:
Non-CHIRP controls
TVG auto modes are not available when connected to a non-CHIRP
sonar module:
When in manual mode the slider bar control is shown:
Note: New c Series TVG controls are accessed by the menu
options: Menu > Sensitivity Settings > TVG.
Enabling and disabling on-screen gain controls
You can enable and disable the on-screen gain controls by following
the steps below.
On a touchscreen multifunction display, with the relevant application
displayed.
1. Select Menu.
2. Select Presentation.
3. Select Gain Controls.
Select Gain Controls will switch between showing and hiding
the on-screen controls.
Setting the frequency for TVG using the on-screen controls
When connected to a Raymarine CHIRP sonar module, the TVG
for frequency 1 and frequency 2 can be changed independently
or both at the same time.
1. Select the on-screen TVG control located on the left hand side of
the fishfinder application.
2. Select the Freq box so that a tick is placed in the box to adjust
both frequencies at the same time, or
3. Select a frequency on-screen so that the window is highlighted,
adjustments will then only be made to the selected frequency.
Adjusting fishfinder TVG manually using on-screen
controls
Touchscreen multifunction displays provide on-screen access to
the TVG controls.
1. Select the on-screen TVG control located on the left hand side of
the fishfinder application.
2. Select the Auto box to switch between Auto and Manual TVG.
3. With Auto deselected, select and hold the Slider and move Left
to decrease value or Right to increase value.
Setting auto TVG using the on-screen controls
Touchscreen multifunction displays provide on-screen access to
the TVG controls.
1. Select the on-screen TVG control located on the left hand side of
the fishfinder application.
2. Select the Auto box to select Auto TVG mode.
3. When connected to a CHIRP sonar module you can select the
Auto TVG mode:
• Low
• Medium
• High
Fishfinder color threshold
The color threshold setting determines the range of colors used on
screen. The effect of this is to set a color threshold below which
targets are not shown. For example a low setting would result in
only the strongest (orange and red) targets being displayed.
Adjusting the fishfinder color threshold
From the fishfinder application:
1. Select Menu.
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